20828560

Names of 20828560

• Cardinal: 20828560 can be written as Twenty million, eight hundred twenty-eight thousand, five hundred sixty.

Scientific notation

• Scientific notation: 2.082856 × 10⁷

Factors of 20828560

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 290

Divisors of 20828560

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 38 40 71 76 80 95 142 152 190 193 284 304 355 380 386 568 710 760 772 965 1136 1349 1420 1520 1544 1930 2698 2840 3088 3667 3860 5396 5680 6745 7334 7720 10792 13490 13703 14668 15440 18335 21584 26980 27406 29336 36670 53960 54812 58672 68515 73340 107920 109624 137030 146680 219248 260357 274060 293360 520714 548120 1041428 1096240 1301785 2082856 2603570 4165712 5207140 10414280 20828560
• Sum of all divisors σ(n): 51960960
• Sum of proper divisors (its aliquot sum) s(n): 31132400
• 20828560 is an abundant number, because the sum of its proper divisors (31132400) is greater than itself. Its abundance is 10303840

Bases of 20828560

• Binary: 1001111011101000110010000₂
• Hexadecimal: 0x13DD190
• Base-36: CEFF4

Squares and roots of 20828560

• 20828560 squared (20828560²) is 433828911673600
• 20828560 cubed (20828560³) is 9036031516528278016000
• The square root of 20828560 is 4563.8317234535
• The cube root of 20828560 is 275.1395875371

Scales and comparisons

• 20,828,560 seconds is equal to 34 weeks, 3 days, 1 hour, 42 minutes, 40 seconds.
• To count from 1 to 20,828,560 would take you about fifty-one weeks!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 20828560 cubic inches would be around 22.9 feet tall.

Recreational maths with 20828560

• 20828560 backwards is 06582802
• The number of decimal digits it has is: 8
• The sum of 20828560's digits is 31
• More coming soon!